From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A2DAB3D0A0; Tue, 9 Jan 2024 19:06:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="MjZtUgOZ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3B5E7C433C7; Tue, 9 Jan 2024 19:06:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1704827179; bh=0imiBNAmxYdjFrN91N+Gr3Ke3cIJ1Iq7tWli0ojzx6g=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=MjZtUgOZvQGQl18Kb0i7Od4ej24M4wYIlxaH3LHBBFvTzGYNOw6xpBm4TpJdQoQtd wLZdd1rRiOeaoJQeODjChVJsIFYNZaAXWN4WDynOjY3SXqXmk+KadiXhwOjDsb17OE lM4J/qEf/5jJ73PruB6olUaSOe/d0bT7x9I1QCdL22G4nvlziD0r2mkzEB6HTdzNI1 VPQBPqg4Ef7Zyn8cLC/5PORvB0QsKep7Ux6AF6PEQX/1e77Eo/nY4Yuy2+9FtzXDE0 Bl2rn15DbWRbYZD5sx0lvPiS+/ouRgipB7YdjwWZX/Qz0XfFlhS/Y7z9FsY6rinf3a QWLXkvSz2YvPA== Received: (nullmailer pid 2960236 invoked by uid 1000); Tue, 09 Jan 2024 19:06:17 -0000 Date: Tue, 9 Jan 2024 13:06:17 -0600 From: Rob Herring To: Eugen Hristev Cc: linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-mediatek@lists.infradead.org, bin.liu@mediatek.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, angelogioacchino.delregno@collabora.com, kernel@collabora.com, matthias.bgg@gmail.com Subject: Re: [PATCH v2 1/2] dt-bindings: media: mediatek-jpeg-encoder: change max iommus count Message-ID: <20240109190617.GA2958445-robh@kernel.org> References: <20240102103801.268647-1-eugen.hristev@collabora.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240102103801.268647-1-eugen.hristev@collabora.com> On Tue, Jan 02, 2024 at 12:38:00PM +0200, Eugen Hristev wrote: > MT8186 has 4 iommus in the list, to cope with this situation, adjust > the maxItems to 4 (instead of previous 2). > Add also minItems as 1 since iommus are mandatory, to avoid warning > on the example. maxItems alone means minItems is the same size. If IOMMU is required, then 'required' is where that is defined. Is there a case where 1 IOMMU is valid? If so, what h/w has this case. Rob